PET Sheet Extrusion Machine Line

PET (polyethylene terephthalate) laika buk ni, grau nna APET (amorphous PET) hte RPET (recycled PET) laika ni hpe, malu masha tray, blister packaging, hkum hkrang nsam ni hpe shinggyin ai, etc. hkap la ai lam, galaw ai lam hpe galaw ai, crystallization akyang lailen), dai jak gaw laklai ai hkrang shapraw ai lam hte ra kadawn ai lam ni nga ai.

 

PET arung arai ni

PET sheet roll ni

asan sha PET sheet

PET packing sheet

PET a kaba dik ai lam gaw:

1. N-gun ja ai hygroscopic: PET raw arung arai ni hpe nbung laru kaba hta galaw ai shaloi, hka n-gun gaw hydrolyze byin shangun nna, molecular chain garan mat ai, n-gun yawm ai, hpraw ai, hte arung arai ni a jak rung atsam ni grai yawm mat wa ai. Dai majaw, hkyet mat ai masa gaw PET hpe galaw shapraw ai lam a asak hkrung lam rai nga ai.

2. N dan ai crystallization akyang lailen: Crystallization hpe pat shingdang na matu, grai dan dawng ai APET sheets ni hpe shapraw na matu, galaw ai shaloi, lawan ai hku katsi ai lam ra ai; Shing nrai, katsi ai gaw crystallization hpe n-gun jaw ya lu nna, katsi ai- hpe n-gun jaw lu ai CPET sheets (oven tray zawn re ai) hpe shapraw ya lu ai.

PET flake crystallizer hte automatic loader system

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{0}}}degree thermal insulation hkrang (bai nhtang wa ai nbung laru lawm ai) hpe n-gun dat jai lang ai atsam grau law hkra lu la na matu

4. Liao Wei a ngang grin ai lam hte shim lum lam hpe makawp maga na matu Liao Wei hpe hkang ai hpaji masa

 

Standard PET sheet extrusion galaw ai ladat hta madung hku nna lawu na masa ni hpe lawm ai:

1. Raw arung arai ni hpe shawng nnan tsi lajang ai masa - gaw ahkyak dik ai daw hpe .

· Hten za ai hte hkyet mat ai ladat:

·Core jak ni: n yawm htum bee leng lahkawng lang dehumidifier hte dryers ni hpe bang da ai.

·Bungli: Ndai gaw matut manoi galaw ai lam re. Dryer langai gaw, n yawm htum hkying hkum 4-6 daram (150-180℃C zawn re ai) hta, hka lim ai PET raw arung arai ni hpe (ga shadawn, granular hkrang hku) matut manoi galaw nga ai, dai gaw 50ppm a lawu de (0.005%) npu de hka n-gun hpe shayawm ya lu ai (ga law malawng gaw ra kadawn ai.<30ppm). The other one is used as a backup or regeneration to ensure uninterrupted production.

·Vacuum suction system: Hka lim mat ai arung arai ni hpe extruder hopper kata de hkrak sha jaw nna, hkum tsup ai hku shinggrup da ai vacuum pipeline hku nna, grau nna hka n-gun hpe shayawm ya lu ai.

2. Extrusion masa

·Extruder:

·Single screw exhaust extruder: Ndai gaw PET sheet galaw na matu masat da ai hkrang masa rai nga ai.

·hpa majaw exhaust amyu? Dai raw materials ni hpe hkyet kau sai raitim, n-gun n rawng ai wan n-gun (moistture, oligomers) hpe hka lim ai aten hta naw byin pru wa chye ai. Exhaust extruder hpe exhaust holes ni hte shinggrup da nna, vacuum pump hte matut da ai, dai gaw hka lim ai aten hta ndai ga ni hpe atik anang shaw la lu ai, hpang jahtum na prut prut gaw bubble n lawm ai sha, n kaja ai lam n nga ai hpe kam mai ai.

·Screw design: PET a n-gun, hka lim ai shara, hte kaga arawn alai ni hpe laksan hku nna galaw da ai, law malawng gaw L/D galu ai (aspect ratio) grau galu ai, 32:1 (sh) dai hta jan ai zawn re ai ni gaw, hka lim ai hte hkum hkrang hpe n-gun jaw ai lam law law nga ai.

·Melt filter hte gear pump (n ra ai raitim ahkyak ai):

·Melt filter: Grau nna RPET (recycled material) hpe lang ai shaloi, n san seng ai lam ni hte n san seng ai lam ni hpe hka lim ai shara hta filter galaw na matu lang ai.

·Gear pump: extruder outlet hte die baw lapran hta jung da ai, grai ngang grin ai hka lim ai n-gun hpe gawgap na matu lang ai, extruder screw pulses ni a majaw byin pru wa ai lwi ai lam galai shai ai lam ni hpe yeng seng kau ya ai, sheet n-gun atsam a ultra-high standard uniformity hpe kam hpa mai ai. Dai gaw, tsaw ai-end sheet arung arai ni hpe galaw shapraw na matu ahkyak ai daw langai mi re.

·Mold bawnu:

·Hanger style T- si ai: PVC sheet wire hte maren, ra sharawng ai galu kaba ai hte n-gun atsam a n-gup magap ni de PET hpe garan jaw ai. Channel design gaw PET a melt arawn alai ni hpe hkan nna hkan sa ra ai. Dai n-gup magap hpe n-gup magap a lateral n-gun hpe online hku nna gram lajang na matu, hkrak hkrak n-gun ja ai bolt hpe gram lajang ai jak langai mi hpe bang da ai.

3. Shaping hte katsi ai ladat

· roll calender masum:

·Core function: PET a matu, roller masum a madung bungli gaw lawan ai hku katsi ai lam rai nga ai. Dai tsaw ai- aten ladaw (280℃C) PET melt hpe shi a glass galai shai ai lam (Tg) a lawu de lawan ai hku katsi mat hkra galaw ra ai, crystallization hpe pat shingdang na matu hte grai dan dawng ai, n-htuk ai APET sheets ni hpe lu la na matu.

·, Roller nbung laru hpe hkang ai: Roller masum hpe dingyang (sh) 45℃angle hku nna lajang da ai. Lapran roller gaw n-gun n rawng ai roller rai nna, ntsa hte lawu daw ni gaw gram lajang mai ai roller ni rai nga ai. Roller kata kaw n galai shai ai nbung katsi ai hpe hka n-gun rawng ai, nbung katsi ai hpe hkrak hkrak hkang ra ai.

·Surface effect: Mirror rollers hpe lang ai gaw, n-gun n rawng ai sheet ni hpe lu la mai ai, frosted rollers hpe lang ai gaw matte sheets ni hpe shapraw lu ai.

4. Traction, n-gun shadawn ai lam hte shinggrup ai ladat

–Traction unit: katsi ai roller law law hte rubber traction rollers ni hte hpawng de da ai, dai gaw roller jak masum kaw na sheet hpe asan sha lam madun ya nna, grau nna katsi shangun ai.

·Online thickness gauge (beta ray or infrared): Traction galaw ai aten hta, non{0}}}} contact thickness gauge gaw, sheet a galu kaba ai hpe matut manoi scan galaw nna, n-gun n-gun hte seng ai jahpan ni hta tengman ai{1}} aten tengman ai ningmu ni hpe jaw ya ai. Ndai system hpe ± 2-3% lapran na n-gun hpe hkam sharang lu ai atsam hpe hkang lu na matu n-gup n-gu n-gun hpe galai shai ai ladat hte matut mahkai mai ai.

·Edge cutting device: Sheet maga lahkawng maga na grau htum ai n-gun n-gun ni hpe gang je kau u.

·Winder: center/surface hka lim ai (sh) turret amyu dual station hka lim ai jak hpe hkap la na matu, n-gun n rawng ai (sh) n-gun n rawng ai hku n-gun n rawng ai sha, coil a n-gun n-gun hpe n-gun jaw na matu, tension hpe hkang ai ladat gaw ahkyak ai.

5. Edge arung arai ni hpe bai jai lang ai ladat

· Dai n-gun n rawng ai arung arai ni hpe kalang ta online crusher hku nna daw garan kau nna, dai hpang, n-gun n-gun n-gun (10% -30) zawn re ai, n-gun n-nan ni hte kayau nna, bai jai lang ai, bai lang ai, grai shayawm ya ai zawn re ai, n-gun n-gun n-rawng ai hka htung langai hku nna, hka lim ai ladat de matut manoi bai kayau mat wa ai.

Laksan amyu: CPET galaw shapraw ai ladat

Katsi ai- hpe ninghkap lu ai CPET sheets ni a matu galaw shapraw ai line (microwave/oven tray ni a matu lang ai) hta, n-gun jat ai ladat ni hpe jat bang ra ai.

·Process: Mr. gaw APET sheet ni hpe asan sha galaw nna, kalang ta online kaw na katsi ai crystallization oven hku nna lai wa ai. Dai sheet hpe PET a crystallization temperature (~160{4}}180℃C) de katsi shangun ai, dai hpe n-gun n rawng ai masa kaw nna crystalline masa de galai shai kau nna, opaque/milky white CPET sheet langai byin wa ai. Shi a katsi ai hpe ninghkap lu ai nbung laru gaw 220℃C jan de grai law hkra jat wa lu ai.

·Ndai line gaw APET galaw shapraw ai line a hpang jahtum kaw crystallization section hpe jat bang ai hte bung ai.

· hkyet mat ai ladat gaw madung rai nga ai: n-gun ja ai- manu jahpu hpe shayawm kau ai hte hkyet mat ai ladat hpe bang ra ai, dai gaw atsam rawng ai PET sheets ni hpe galaw shapraw na matu ra kadawn ai lam rai nga ai.

·m a hkrak ai lam ra kadawn ai lam ni: N-gun n-gun n-gun, asan sha chye na na matu ra kadawn ai lam ni gaw grai tsaw ai majaw, gear pump ni, online thickness gauge ATC system ni, etc. ni gaw ra kadawn ai configurations ni law law nga ai, gumhpraw bang ai manu ni hpe jat wa ai.

· Raw arung arai ni a hkam sha lam: Raw arung arai ni a hkam kaja lam (grau nna RPET a san seng ai lam hte n-gun atsam ni) hte galaw shapraw ai makau grup yin a ngang grin ai lam hpe grai ra sharawng ai lam ni hpe tawn da ai.

·Energy jai lang ai lam: Hka lim ai hte extrusion galaw ai lam lahkawng yan hta nbung laru kaba ra ai majaw, n-gun grai jai lang ra ai.

PET sheet extrusion machine line gaw hpaji hparat hpe grai ngang ngang jum tek da ai, shi a npawt nhpang gaw:

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2. Precision dan dawng ai lam: Excision dan dawng ai lam: Excision exttruder, gear pump, hte hkrak hkrak ai lam ni gaw, hka lim ai a san seng ai lam, ngang grin ai lam, langai sha re ai lam ni hpe madi shadaw ya ai.

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PET sheet extrusion machine line hpe lata ai gaw, teng sha nga yang, n-gun, n-gun, hka n-gun, n-gun n-gun hpe hkrak hkra hkang lu ai, grai tsaw ai automated system hpe lata ai lam rai nga ai.

PET gaw hygroscopic arung arai langai mi re. Nbung laru masa hta katsi ai hpe hkam la lu ai. Extrusion galaw ai aten hta, hka lim ai arung arai gaw, extruded foil a jak rung atsam ni hpe hkra machyi shangun ai hydrolysis chemical reaction hpe hkam sha ra ai. Ndai lam a majaw, common technology gaw, n-gun law law jai lang ai arung arai hpe hkyet kau ra ai.

COWIN hpe hpang jahtum na prat na twin screw extruders ni hpe jai lang nna, anhte gaw hka lim ai lam hpe koi nna, PET arung arai ni hpe shapraw ya lu ai, pellets hte flakes lahkawng yan hpe shapraw ya lu ai. Dai hka lim ai lam hpe extruder ntsa kaw jung da ai hkrak ai vacuum jak hku nna tawn da ai hku nna, hydrolysis galaw ai lam a akyu ni hpe koi gam ai (sh) shayawm ya ai.

. Ndai gaw n-gun atsam a minimum 30% hpe hkye la lu na re.

2. Hpang jahtum na sheet quality hpe grau kaja hkra galaw ai gaw, n-gun yawm mat ai hpe koi gam ai gaw, pre{1}}crystallization hte pre{2}}dry aten ladaw hta hkying hkum law law na ai aten hta byin pru wa ai.

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4. Twin screw hte extruder capacity hpe tup hkrak lang mai ai. Single screw extruder gaw grau n-gun n law ai raitim, nang gaw dai zawn re ai pru ai lam hpe lu la na matu n-gun grau yawm mat na re.

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